Q: what does CDL2CROWS return value -100 and 100 stands for?

[mw66]

ta-lib-python/talib/_func.pxi

Line 776 in 2ffcf42

integer (values are -100, 0 or 100)

0 means no pattern detected.

but what does CDL2CROWS return value -100 and 100 stands for?

Thanks.

[mrjbq7]

It looks like perhaps it only returns 0 or -100:

https://github.com/TA-Lib/ta-lib/blob/main/src/ta_func/ta_CDL2CROWS.c#L225

[mw66]

But I do see others e.g: CDLXSIDEGAP3METHODS return 3 values:

np.unique(candles) = array([-100, 0, 100]

so, in general, what does -100 and 100 stands for respectfully?

[mrjbq7]

Well there are also -200 and 200.

In general, it's supposed to represent bearish for negative and bullish for positive.

And I think -200 and +200 are meant to be "confirmation" signals.

[mw66]

ok, these values should be in the README as guide, e.g.

https://github.com/TA-Lib/ta-lib/blob/main/src/ta_func/ta_CDLXSIDEGAP3METHODS.c#L215

[mrjbq7]

PR's welcome!

[mw66]

Well, only if I know enough about these values myself, e.g. so CDLXSIDEGAP3METHODS can be both bullish and bearish?

[mrjbq7]

Apparently! I’m not trying to be difficult, but the authority for what each returns is in the C source code. There are also some candle settings that determine aspects of the CDL algorithms.